The meter provides reliable operation in waste treatment plants, rivers, lakes and other aqueous systems. The meter will read in either grams per liter when in the suspended solids mode or relative density percentage while in the interface level mode of operation.

The Model 711 stores the calibration values for suspended solids and interface level in two separate non-volatile memory locations allowing the user to switch between operational modes without having to recalibrate.The net effect is two analysers in one.

Due to the full utilisation of the microprocessor, calibration values are stored so that recalibration is not required on a daily basis. If the sensor is cleaned after use, monthly calibration is usually more than sufficient for proper operation in either mode of operation.

The Model 711 analyser utilises the Model 71 medium range sensor. The Model 71 is a rugged, reliable sensing element that has polymer optical grade lenses. It was designed specifically to meet the rigorous demands that are a requirement for a portable sensor.